. A body has kinetic energy 250 J If the mass of a body is 5kg then calculate its velocity
Answers
Answered by
1
Given:
A body has kinetic energy 250 J. The mass of the body is 5kg.
To find:
Momentum of object?
Calculation:
General expression relating KE , momentum and mass is :
KE = \dfrac{ {P}^{2} }{2m}KE=
2m
P
2
\implies {P}^{2} = KE \times 2m⟹P
2
=KE×2m
\implies {P}^{2} = 250 \times 2 \times 5⟹P
2
=250×2×5
\implies {P}^{2} = 2500⟹P
2
=2500
\implies P = \sqrt{ 2500}⟹P=
2500
\implies P = 50 \: kg \: m {s}^{ - 1}⟹P=50kgms
−1
So, momentum of object is 50 kg m/s
Answered by
0
Answer:
50 j
Explanation:
velocity /
mass
250/5
50
Similar questions